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    • 1. 发明公开
    • 불휘발성 반도체 기억 장치
    • 불휘발성반도체기억장치
    • KR1020130039762A
    • 2013-04-22
    • KR1020137002526
    • 2012-09-18
    • 플로디아 코포레이션
    • 시나가와,유따까가사이,히데오다니구찌,야스히로
    • G11C16/06
    • H01L27/11517G11C16/0416G11C16/0483G11C16/24G11C16/3468
    • Proposed is a non-volatile semiconductor memory device in which it is possible to more freely set the voltage used when accumulating charge in a selected memory cell transistor than a conventional one. In the non-volatile semiconductor memory device (1), when accumulating charge in a selected memory cell transistor (115), a high write inhibit voltage is applied through a P-type MOS transistor (9b) and a low write voltage is applied through an N-type MOS transistor (15a). A function for applying a voltage to the selected memory cell transistor (115) or a non-selected memory cell transistor (116) is thereby shared by the separate P-type MOS transistor (9b) and N-type MOS transistor (15a). This makes it possible to separately adjust, for example, the gate and source voltages of each of the P-type and N-type MOS transistors (9b, 15a) and finally to set the gate-substrate voltage to, for example, 4 V or other value.
    • 提出了一种非易失性半导体存储器件,其中可以更自由地设置当在选择的存储器单元晶体管中累积电荷时使用的电压比常规电压更高。 在非易失性半导体存储器件(1)中,当在选择的存储单元晶体管(115)中累积电荷时,通过P型MOS晶体管(9b)施加高写入禁止电压,并且通过施加低写入电压 一个N型MOS晶体管(15a)。 由此,通过分离的P型MOS晶体管(9b)和N型MOS晶体管(15a)共用用于对选择的存储单元晶体管(115)或未选择的存储单元晶体管(116)施加电压的功能。 这使得可以分别调整例如P型和N型MOS晶体管(9b,15a)中的每一个的栅极和源极电压,并最终将栅极衬底电压设置为例如4V 或其他值。